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Odessa, City of

Sewage treatment plant, major discharger, Midland County, Texas. NPDES permit TX0072800 expired Jul 2, 2025; its limits still apply. Last 12 months: over a limit 23 times (last July 2026), 3 of 38 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (20 values), outfall 101 form A monthly (1 value), outfall 201 form A monthly (1 value), outfall TX1 form Q quarterly (12 values), outfall TXA form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
31 values over a limit, 0 required values missing, 10 of 42 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 23 values over a limit
Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], daily average4.43 mg/L≤ 3 mg/L48%
January 2026E. coli, daily maximum1203.3 CFU/100mL≤ 399 CFU/100mL202%
January 2026Solids, total suspended, daily average10109.9 lb/d≤ 1589 lb/d536%
January 2026Solids, total suspended, daily average159.6 mg/L≤ 15 mg/L964%
January 2026Solids, total suspended, daily maximum4800 mg/L≤ 40 mg/L11900%
February 2026Nitrogen, ammonia total [as N], daily average1308.34 lb/d≤ 318 lb/d311%
February 2026Nitrogen, ammonia total [as N], daily average18.18 mg/L≤ 3 mg/L506%
February 2026Nitrogen, ammonia total [as N], daily maximum24.5 mg/L≤ 10 mg/L145%
March 2026E. coli, daily maximum2420 CFU/100mL≤ 399 CFU/100mL507%
March 2026Nitrogen, ammonia total [as N], daily average1287.43 lb/d≤ 318 lb/d305%
March 2026Nitrogen, ammonia total [as N], daily average22.59 mg/L≤ 3 mg/L653%
March 2026Nitrogen, ammonia total [as N], daily maximum31.1 mg/L≤ 10 mg/L211%
April 2026E. coli, daily maximum1733 CFU/100mL≤ 399 CFU/100mL334%
April 2026Nitrogen, ammonia total [as N], daily average21.38 mg/L≤ 3 mg/L613%
April 2026Nitrogen, ammonia total [as N], daily average325.89 lb/d≤ 318 lb/d2%
April 2026Nitrogen, ammonia total [as N], daily maximum26.2 mg/L≤ 10 mg/L162%
May 2026Nitrogen, ammonia total [as N], daily average14.41 mg/L≤ 3 mg/L380%
May 2026Nitrogen, ammonia total [as N], daily maximum23.7 mg/L≤ 10 mg/L137%
June 2026Nitrogen, ammonia total [as N], daily average366.67 lb/d≤ 318 lb/d15%
June 2026Nitrogen, ammonia total [as N], daily average9.93 mg/L≤ 3 mg/L231%
June 2026Nitrogen, ammonia total [as N], daily maximum15.2 mg/L≤ 10 mg/L52%
June 2026pH, minimum4.9 SU≥ 6 SU—
July 2026Nitrogen, ammonia total [as N], daily average5.25 mg/L≤ 3 mg/L75%

Limits in force (36)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 15 mg/Lall year001
Solids, total suspendeddaily maximum≤ 40 mg/Lall year001
Solids, total suspendeddaily average≤ 1589 lb/dall year001
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]daily average≤ 318 lb/dall year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plant2-hour peak≤ 24375 gal/minall year001
Flow, in conduit or thru treatment plantannual average≤ 11 MGDall year001
Chlorine, total residualinstantaneous maximum< .1 mg/Lall year001
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year001
E. colidaily average≤ 126 CFU/100mLall year001
E. colidaily maximum≤ 399 CFU/100mLall year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 1059 lb/dall year001
Flow, in conduit or thru treatment plantannual average≤ 12.7 MGDall year101
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year201
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all yearTX1
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all yearTX1
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX1
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all yearTX1
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all yearTX1
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all yearTX1
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all yearTX1
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex48-hour minimumreport only (%)all yearTX1
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulexmonthly average minimumreport only (%)all yearTX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (%)all yearTX1
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (%)all yearTX1
LC50 Pass/Fail Static 24Hr Acute D. Pulexsingle samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Pimephales promelassingle samplereport only (pass=0;fail=1)all yearTXA

Cited limits by parameter: Texas's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

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